baber/WOPTO huggingface dataset:
Patent GB-541675-A (GB)
Title: Improvements relating to spray nozzles
IPC: B05B1/32
Filed: 1940-11-06
Abstract: 541,675. Nozzles. BROWN, D. J. K., and BROWN (BROWNALL), Ltd., D. Nov. 6, 1940, No. 16172. [Class 69 (iii)] The orifice of a spray nozzle of the kind having a fan or half-moon shaped gap a in the side of a tube b is regulated by an axially movable piston c the rod of which is tapped to receive a screwed spindle d. The spindle d extends through a gland h in a cap e and attached to a cover like grip f by which it is rotated. To prevent rotation of the piston its rod is of square section and engages a similar shaped hole in a sleeve g on the cap c.
Patent GB-1156765-A (GB)
Title: Stabilization of a Chlorinated Hydrocarbon
Inventor: BROOKS ERNEST FRANK
IPC: C23G5/028
Filed: 1968-04-04
Abstract: 1,156,765. Stabilization of methyl chloroform. E. F. BROOKS (Dow Chemical Co.). 4 April, 1968, No. 16173/68. Heading C5D. A composition comprises methyl chloroform and as a stabilizer a thiane compound of the formula wherein X is oxygen or sulphur, each of m and n being an integer of from 0 to 4 when X is sulphur, and each of m and n being an integer of from 1 to 3 when X is oxygen, such that m + n = 4 in both cases. The thiane eompound usually comprises 0.2 to 15% of the composition and preferably comprises 1.0 to 5%. This composition is especially stable to aluminium and oxidative decomposition by oxygen in the presence of other metals, such as iron. The thiane inhibitor may be used alone or in the presence of dioxane, for example.
Patent GB-1533437-A (GB)
Title: Apparatus for indicating measured valves
IPC: G01D5/26
Filed: 1976-04-21
Abstract: 1533437 Weighing apparatus; indicating apparatus KUBOTA Ltd 21 April 1976 [14 Feb 1976 (4)] 16194/76 Headings G1J and G1W Apparatus for indicating a measured value e.g. weight, so that the same value is shown while the actual measured value is within a range which, rounded off, gives the indicated value (e.g. 13.5 - 14À5 is shown as 14) employs at least two light sources for operation one at a time to illuminate a respective portion of a relatively moveable scale. The invention is described as applied to a bathroom scale of the known kind shown if Fig. 1 which has a dial 15 rotating in accordance with the weight on the platform 2. The dial has a scale 19 and a corresponding series of apertures 17 (shown in straight lines in Fig. 3 but, in fact, extending around the dial periphery). The apertures 17 are scanned by photo-electric means 18, the signal being processed by a bi-stable circuit 25, Fig. 4 (not shown) so that light above a certain amount passing through an aperture causes one light source 20a to operate, and light below that amount operates light source 20b. As shown in Fig. 3, adjacent areas 26a, 26b are successively illuminated as the figure 14 is moved with the dial through valves corresponding to 13À5- 14À5 and this figure only is projected on the screen 24. Out of this region the process is repeated for the adjacent Fig. 13 or 15 over the same range. In other arrangements, to enable more figures to be placed round the dial, the scale is split into two or more radially spaced rows, figures which are selectively illuminated, Figs. 7-10 (not shown). Adjacent figures in a single row may be in areas of differing colour to be illuminated selectively by light passing through filters of complementary colours. Light polarized in different planes may illuminate a row of figures adjacent ones of which are in surface areas polarized in corresponding planes Fig. 6 (not shown). The photo-electric scanning means may employ reflective marks rather than apertures (not shown). In lieu of the photo-electric scanning arrangement, some form of electrical contact means may be used to operate the light sources (not detailed) The dial may include a normal analogue scale 191, 192 Fig. 10.
Patent GB-399606-A (GB)
Title: Improvements in flexible shaft couplings, particularly for use on aircraft
IPC: F16D3/56
Filed: 1932-06-08
Abstract: 399,606. Flexible couplings. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and FORSYTH, A. G., Venlaw, Burdon Lane, Cheam, Surrey. June 8 1932, No. 16199. [Class 80 (ii).] A coupling comprises driving and driven elements, provided, the one element with a plurality of packs of leaf springs disposed radially of the shaft and lateral abutments towards the opposite ends of the springs, and the other element with a series of dog teeth engaging the packs of springs intermediately of their ends and a second set of dog teeth abutting against fixed parts on the element carrying the leaf springs after a predetermined relative angular movement of the two elements has taken place. In one form of the coupling a driving shaft a has a circumferential flange provided with two sets of dog teeth g, h, abutting against leaf springs j, and a flange on the driven element has two sets of dog teeth c, n, the set c extending between the leaf springs j, and a predetermined clearance being left between the teeth n, g. The driven element is a gear wheel freely mounted on the shaft a with the provision of an intermediate bushing k.
Patent GB-389325-A (GB)
Title: Improvements in holders for stair carpets
IPC: A47G27/06
Filed: 1932-06-09
Abstract: 389,325. Stair-carpet fasteners. SMITH & DAVIS, Ltd. and SMITH, H. F., Hampton Street, Birmingham. June 9, 1932, No. 16265. [Class 52 (v).] In a staircarpet holder of the kind in which a length of metal two - doubled to form a pair of spaced parallel arms one of which slidably engages a guide 1 &c., secured to the stairs, the arm 6 has a longitudinal slot 8 so that the other arm'5 can be bent, along its centre line 10, to fit neatly into the angle of the stairs. The edges of the arm 6 have notches 14 which co-operate with the guide 1, which is in the form of an angle bracket with bent over edges 3, to prevent accidental removal of the holder. The open end of the slot 8 may be closed by an attached plate.
Patent GB-1137365-A (GB)
Title: Continuous wet grinding of solid materials and dispersion of powdered substances in liquids in tube mills
Inventor: LEHRER ERWIN
IPC: B02C17/06
Filed: 1966-04-14
Abstract: 1,137,365. Tube mills. BADISCHE ANILIN & SODA FABRIK A.G. 14 April, 1966 [15 April, 1965], No.16334/66. Heading B2A. A tube mill comprises a motor-driven casing mounted at both ends and subdivided into compartments 14 . . . 18 by partitions 10 . . . 13. Premixed feed, e.g. y iron oxide in a binder solution for making recording tape, is introduced via a pipe 22 together with a gas current via a tube 24 into the grinding chamber, which is charged with balls, and is forced, at a pressure from 10-500 Kg. per sq. m., by the gas current through openings 21 in the middle of the partitions. The gas current, measured by a flowmeter 25, is saturated in a container 26 with the vapour of the liquid used in the grinding. The partitions may be pierced by slots (Fig. 2) or each provided with a hole, covered by mesh finer than the diameter of the balls (Fig. 3). Ground or dispersed material leaves the mill via a bore 27 in a shaft 5.
Patent GB-529555-A (GB)
Title: Improved ready reckoner device
IPC: G06G1/00
Filed: 1939-06-03
Abstract: 529,555. Calculating-apparatus. JOHNSTONE, L. W., and WADDINGTON, Ltd., J. June 3, 1939, No. 16350. [Class 106 (i)] A tabular calculator comprises an annular disc 1 with a plurality of radiating columns of figures and a corresponding marginal set of symbols 5 indicating the nature of the calculation to be performed, and a pointer strip 6 threaded through the aperture in the disc, the strip being provided with a column of figures 8 at one end and a pointer or notch 9 at the other end to indicate the answer on the diametrically opposed column of figures. The pointer strip has shoulders 11. 12 to prevent its removal. The columns of figures instead of being radially disposed may be inclined to the radius or arranged in stepped formation.
Patent GB-585987-A (GB)
Title: Improvements in electrical apparatus adapted to operate at very high frequencies
IPC: H01J5/32
Filed: 1940-11-11
Abstract: 585,987. Electron oscillators; wave guides. M-O VALVE CO., Ltd., BREADNER, R. L., and HARRIS, N. L. Nov. 11, 1940, No. 16353. [Classes 39 (i) and 40 (v)] [Also in Group XXXVI] Relates to the sealing of a glass &c. septum 8, Fig. 4, across a wave guide 2 which is entered into a sealed envelope 9, which may be a hollow resonator or the glass envelope of a high - frequency discharge tube. The septum is formed by placing a ring 3, Fig. 1, of glass inside the guide 2 and holding it in position by a mandrel 4. The guide is heated so as to soften. the glass and is spun about its axis on a chuck 1 so as to bring the glass into contact therewith. A glass disc is then sealed to the ring. Alternatively, the ring may be replaced by a cupshaped disc. Where the guide is to be sealed into a glass envelope, a ring of glass is tooled on to its outer surface in the neighbourhood of the septum.
Patent GB-375059-A (GB)
Title: Improvements in or relating to electrical indicators for lift and other installations
IPC: B66B3/02
Filed: 1931-06-04
Abstract: 375,059. Electric indicators. MILLBANK, L. A., 30, Greenham Road, Colney Hatch Lane, Muswell Hill, London. June 4, 1931, No. 16363. [Class 40 (i).] The flag of an indicator for lifts &c. slides on vertical slides and is released by a magnet mounted behind the flag. The flags of a number of indicators are reset by a common resetting device. When current passes through the coils 27, the armature 22 is attracted and removes the extension 18 from catch 17, to allow the sheet metal flag 16 to slide down the slides 14 into its exposed position. To reset the flag, the push 33, which is shown in operated position, is depressed. By means of the linkage 37, 38, the rod 39 is moved upwards carrying the resetting rods 30 and the operated flag 16. The flag slides up the surface of 18 and is held by the catch 17. The resetting rods are made individual to each indicator and comprise a rod 30, pointed and recessed as shown, so that several rods fit into each other, and a projection 31 which engages the operated flag. In an alternative arrangement the flag when in its lower position, closes a circuit for an electric lamp.
Patent GB-353600-A (GB)
Title: Improvements in or relating to tubular filters
IPC: B01D46/04
Filed: 1930-05-28
Abstract: 353,600. Dust filters. SCHARINA, E. W. STRAUS-, 5, Schonbockenerstrasse, L³beck, Germany. May 28, 1930, No. 16412. Convention date, May 28, 1929. [Class 8 (ii).] A tubular air filter is resiliently supported and subjected to longitudinal shocks during operation.
Patent GB-698837-A (GB)
Title: Elastic (rubber) stockings and method of producing them
IPC: D04B1/26
Filed: 1951-07-11
Abstract: 698,837. Knitting. VIRCHAUX, P. July 11, 1951. [May 22, 1951] No. 16437/51. Class 74 (ii). [Also in Group VI] An elastic stocking comprises a body section 1 knitted so that air spaces are provided between the stitches even if not under tension and a heel 2, which is knitted of non-elastic thread, being inserted into and fixed to the body section by an elastic thread. Ribs 3 are provided on the body section 1 opposite the heel 2. The elastic thread which is used has a rubber core. The stocking is knitted in purl stitches on rib - knitting machines with two needlebeds and double-latch needles in which the work passes alternately from one needlebed to the other.
Patent GB-737041-A (GB)
Title: Improvements in or relating to steam boilers
IPC: F22B3/04
Filed: 1953-06-16
Abstract: 737,041. Forced-flow steam boilers. SIEMENS - SCHUCKERTWERKE AKT. - GES. June 16, 1953 [July 3, 1952], No. 16614/53. Class 123 (2). In a forced-flow steam boiler for operation at over-critical pressure and with high feedwater temperature, above 300‹ C. say, the whole of the combustion air is passed through an airheater, located in the flue gas stream behind the feedwater heater, and is supplied to the boiler combustion chamber under pressure. When the fuel comprises a combustible mixture of coal dust and gas, the temperature of the fuel is controlled by admixture with exhaust flue gas.
Patent GB-586292-A (GB)
Title: Improvements in or relating to remote control receiving relay devices
IPC: H02J13/00
Filed: 1944-09-01
Abstract: 586,292. Signalling over power circuits. COMPANIA PARA LA FABRICACION DE CONTADORES Y MATERIAL INDUSTRIAL SOC. ANON., and VITEAU, P. Sept. 1, 1944, No. 16682. [Class 40 (iv)] [Also in Group XXXVIII] Mechanically tuned relays 10, 11 are associated via a rectifier 9 with a power circuit by means of a bridge which is normally balanced at the power frequency and also at the musical carrier frequency of the signals. The bridge contains an element 2 having an armature tuned to the carrier frequency and when a modulated signal having the proper carrier frequency is received, the armature vibrates and the bridge is unbalanced. The resulting output current after rectification has the modulation frequency, and the relay 10 or 11 tuned to that frequency responds.
Patent GB-1173426-A (GB)
Title: Process for producing Silver Salt of Benzotriazole
IPC: G03C1/498
Filed: 1967-04-12
Abstract: 1,173,426. Silver salt of benzotriazole. FUJI SHASHIN FILM K.K. 12 April, 1967 [12 April, 1966], No. 16749/67. Heading C2C. [Also in Division G2] Crystalline silver salt of benzotriazole is prepared by mixing together (a) a solution of AgNO 3  in a first solvent (A) which is also a solvent for HNO 3  formed in the reaction but which does not substantially dissolve the silver salt of benzotriazole, and (b) a solution of benzotriazole in a second solvent (B) which dissolves 1-30% by wt., based on total wt. of two solvents, of solvent (A) but which does not substantially dissolve the silver salt of benzotriazole, whereby crystals of the required salt are precipitated. Specified solvents (A) are water, dimethylformamide and dimethylsulphoxide. Specified solvents (B) are tricresyl-, monooctyl-dibutyl- and tri-n-butyl phosphate, di-methoxyethyl- and di-n-butyl-phthalate, diethyl sebacate, castor oil, cotton seed oil, linseed oil and camellia oil. The precipitated salt crystals may be washed with a volatile liquid with which both solvents (A) and (B) are completely miscible and which forms a homogeneous ternary mixture with more than 10% by wt. of each of said solvents. Suitable volatile liquids are methanol, ethanol and acetone. The process yields fine crystals of the silver salt of benzotriazole, e.g., spindle-like crystals having a length 0À1-3 microns, which are particularly suitable for use in photographic materials (see Division G2).
Patent GB-821697-A (GB)
Title: Hydraulic accumulator
Inventor: WORLIDGE RONALD FREDERICK
IPC: F15B1/24
Filed: 1956-05-31
Abstract: 821,697. Piston and stuffing-box packing. LOEWY ENGINEERING CO. Ltd. June 27, 1957 [May 31, 1956], No. 16859/56. Classes 122 (1) and 122 (5). [Also in Group XXIX] An accumulator has a gas chamber 19 separated from a liquid chamber 20 by a piston assembly 18 which is mounted on a rod 23 extending to the exterior of the accumulator. The piston assembly comprises discs 21, 22 with a flat sealing ring 30 of elastic material therebetween, a chamber 31 being formed between the discs and communicating with the gas chamber through a bore 32. The pressure in the gas chamber is less than that of the liquid chamber due to the rod 23. The discs are arranged on a reduced end of the rod 23 between shoulder 25 and nut 26 and are urged together by the pressures in the chambers 19, 20 compressing ring 30 and thus sealing the chambers. Sealing means for preventing escape of liquid past rod 30 to the outside of the accumulator comprise discs 41, 42 and sealing ring 45 freely mounted in the cavity in the head of the accumulator. Holes 46 are provided in the ring 45 and lower disc 42 and through part of the upper disc 41 and are under atmospheric pressure. Pins 47 with vent holes are preferably provided in the holes 46 to prevent the sealing ring from spreading into the holes.
Patent GB-1351287-A (GB)
Title: Method and apparatus for making blown plastics articles
IPC: B29C49/70
Filed: 1971-05-25
Abstract: 1351287 Trimming blow moulded articles OWENS-ILLINOIS Inc 25 May 1971 [3 June 1970] 16883/71 Heading B5A An apparatus or process in which a moulded article is removed from a mould by chain means which grip the tail waste part of the article which is then separated from the tail. The removal mechanism includes chains 22, 23, 24 which grip the tail and an inclined guideway 34 which lifts the article away from tail. The take-out chain 22 co-operates with a bar 21 to move the article from between the mould halves 10, 12 and transfer the tail to be gripped by the drive chain 23 and the auxiliary chain 24 which convey the article to the inclined guideway 40, 41 up which the article travels to be separated from the tail. The auxiliary chain 24 is supported by a yoke 95 loaded by springs 97. The sprocket 84 of the drive chain 23 is driven by a motor 94 and is connected to the sprocket 81 of the take-out chain 22 by a flexible shaft 94. The auxiliary and drive chains have engaging sprockets 88 and 89. The engaging and separating movements of the bar 21 and chain 22 are effected by actuators 44 acting through racks 53, 63 and gearing in housings 50. Cooling air jets 98 are directed on the tails.
Patent GB-461796-A (GB)
Title: Improvements in and relating to photographic attachments for firearms
IPC: F41G3/26
Filed: 1936-06-17
Abstract: 461,796. Cameras combined with guns. ATKIN, O. W. June 17, 1936, No. 16889. [Class 98 (i)] [Also in Group XXI] The trigger 6 of a firearm is connected directly to a rod 16, for example by a link 20 so as to pull the rod when the trigger is pulled, and the rod is so arranged in relation to the photographic apparatus that the first part of its movement serves to position a film for exposure and the second part of the movement causes the shutter to operate. A detent 21 on the rod co-operates with pins 39 on a feed roller 33 to rotate this step by step, and a spring belt 36 transmits the rotation to a take-up roller 34, so that the film from a spool 31 is gradually drawn over a guide roller 30 and through the exposure guide 32. Another detent 22 on an extension 16a of the rod subsequently engages a finger 25 on an escapement lever 23 pivoted at 24 and co-operating with ratchet-like teeth on a barrel-shutter 11, so that the escapement lever is rocked and allows the shutter to be operated by means of a cable 12 driven by a spring drum device 13, 14.
Patent GB-570622-A (GB)
Title: Improvements in thermal responsive electric switches
IPC: H01H61/017
Filed: 1943-10-15
Abstract: 570,622. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., CLARKE, M. G., and RUFF, H. R. Oct. 15, 1943, No. 16939. [Class 38 (v)] A thermal switch, particularly suitable, for controlling the preheating of the electrodes of a discharge lamp, has a contact 7 carried by a bimetal element 5 of concave or dished form which is heated by glow discharge to cause the contact to snap into engagement with a co-operating contact 6. Specifications 521,618 and 532,490 are referred to.
Patent GB-489455-A (GB)
Title: Improvements in or relating to low-temperature extraction of light hydrocarbon mixtures
IPC: C10G21/10
Filed: 1937-06-18
Abstract: <PICT:0489455/III/1> In a process for extracting oils at a low temperature with sulphur dioxide or solvent mixtures containing it, the oil is pre-cooled before extraction, by heat exchange with a liquid medium undergoing re-vaporization at a low pressure, which medium has previously been condensed by cold generated by partial vaporization of sulphur dioxide.  The liquid medium is of lower boiling point than sulphur dioxide and preferably consists of ethane or propane.  The sulphur dioxide is also brought to the desired low temperature before contact with the oil.  Light hydrocarbons, such as benzine or kerosene, are cooled to about -45 DEG  C. in a heat exchanger 2, through which cold raffinate passes from an extraction tower E, and then pass to a heat exchanger A, and are then admitted to the bottom of the column E.  Propane is condensed in a heat exchanger B at about -15 DEG  C. by evaporation of sulphur dioxide in a member 10, and the cold propane passes through an expansion valve R2 to the heat exchanger A whereby a further reduction in temperature to about -60 DEG  C. or lower is effected.  The propane is then recompressed by a pump P3 and returns to the exchanger B.  Sulphur dioxide at the same temperature passes from a member 4 in the heat exchanger A to the top of the column E.  Raffinate passes from the top of the column through heat exchanger 2 to evaporators V1, V2, V3, and the sulphur dioxide returns to a reservoir K.  The extract passes through a heat exchanger 8, through which sulphur dioxide passes, to evaporators V4, V5, V6.  The sulphur dioxide may be mixed with auxiliary solvents such as halogenated hydrocarbons.
Patent GB-669515-A (GB)
Title: Improvements in or relating to machines for severing coal and like minerals
IPC: E21C27/46
Filed: 1950-07-07
Abstract: 669,515. Coal planers. BRITISH JEFFREYDIAMOND, Ltd., PEARSON, D., and YARMAK, J. July 7, 1950. No. 17045/50. Class 68 (i). In the wedge head 4 of a mineral planer is incorporated a vibrator unit 1 which sets up vibrations in the head in a plane which contains the cutting edge 5a of the head and which is transverse to the direction of the shearing or cutting motion. The hydraulically operated vibrator has two or more strikers 2, 3 arranged to reciprocate between spaced parallel brackets 13, 14 secured to said head, the brackets being provided with rubber or spring elastic covers 13a, 14a. The machine may be single or double ended and each head is connected to the body by flat springs, 21 pivoted links or the like. Specification 667,422, [Group XXIX], is referred to.
Patent GB-589348-A (GB)
Title: Improvements in and relating to electron accelerator control systems
IPC: H05H11/00
Filed: 1944-09-07
Abstract: 589,348. Magnetic induction accelerators. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 7, 1944, No. 17138. Convention date, Sept. 10, 1943. [Class 39 (i)] A magnetic induction accelerator comprises a closed vessel 10 with high resistance coating 11, a thermionic cathode with surrounding grid, a magnetic system including a closed magnetic circuit 16-19, laminated iron cylinders 14 and 15 and polepieces 12 and 13 excited by coils 20 and 21 to give a time varying magnetic flux and in addition surrounded by reversely wound series connected coils 30, 31 which when energized produce a field component in a radial direction and cause axial displacement of the electron stream which is interrupted by a flat plate target 57 parallel to the plane of the orbit. Coils 30, 31 receive an impulse from the condenser 33 charged through a rectifier 34 by current from the secondary of a transformer 35, the primary winding of which is supplied from the mains 24. The discharge circuit 36 of the condenser 33 contains an ignitron 38 rendered conductive by another condenser 39 charged by a transformer through a rectifier 43. A thyratron 45 has its grid connected to the secondary of a peaking transformer 47, a biassing battery 48 and a resistance 49. The primary winding of the transformer 47 is energized by current through a phase shifter 50. When the grid 53 of the thyratron receives a positive charge, an impulse of current from the condenser 39 through the thyratron renders the ignitron 38 conductive and energizes the coils 30, 31.